Computer and printer.



No. 773,057. PATENTED OCT. 25, 1904. W. H. CLARK.

COMPUTER .AND PRINTER.

APPLIOATIONIIILED DBG. 9, 1898.

N0 MODEL. v 11 SHEETS-SHEET 1.

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No.1773,057. PATENTED OCT. 25, 1904. W. H. CLARK.

COMPUTER AND PRINTER.

APPLIQATION FILED DEO. 9, 1898.

No MODEL. 4 11 SHEETS-SHEET 2.

WTNESSES /72 n VENT? 7i. By

A TTORNEYS.

PATENTBD OCT. 25, 1904.

W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED DBO. 9, 1898.

11 ISHEETS-511mm' s.

No MODEL.

INVENTOH w/TNESSES HLW.;

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VPATENTED 00T. Z5, 1904.

W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED DEG. 9. 1898.

11 SHEETS-SHEET 4.

N0 MODEL.

I nventor: @AMM w46/ Attorneyl',

Witnesses:

E FSM/ull. 5. @EMM PATBNTED OCT. 25, 1904.

W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED DBO.9,1-B98.

11 SHBBTS-SHEET 5.

N0 MODEL.

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Attorneyr,

Witnesses.

PATENTE) 0G11. 25,1904.

W. H. CLARK.- COMPUTER A1111 P111NTE11.

APPLIGATION FILED D110. Q, 1898.

11 SHEETS-slum' 6.

N0 MODEL.

Witnesses Attorneys.

PATBNTED OCT. 25, 1804.

W. H. CLARK. GOMPUTERAND PRINTER.

APPLICATION FILED DEU. 9, 1898.

11 SHEETS-SHEET 7.

N0 MODEL.

I nventor: WJ@

@r- 'wu' Attorneys.

N0 MODEL.

Witnesses.

y PATBNTBD OCT. 25, 1904. W. H. CLARK.

COMPUTER AND PRINTER.

APPLICATION FILED Dnc. 9, 189s.

11 SHEETS-SHEET 8.

Inventor.

Attorney;

No. 773,057. PATENTED OCT. 25, 1904.

- W. H. CLARK.

COMPUTER AND PRINTER.

APYLIGATION FILED DB0. 9, 189s.

No MODEL. y 11 SHEETS-SHEET 9.

W itneSSeS- Inventor.'

AttOrneyJ.

No. 773,057. y PATENTED OCT. 25, l1904.

W. H. CLARK.

ACOMPUTER AND PRINTER. APPLIOATION FILED DEO. 9, 189s.

No MODEL. 11 sHBBTs-sHBET 1o.

Witnesses. Inventor.

Attorneys,

PATENTED 00T. 25, 1904.

W. H. CLARK. COMPUTER AND PRINTER.

APPLICATION FILED DEU. 9, 1898.

11 SHEETS-SHEET l1.

N0 MODEL.

-m H Hlm No. 773,057. i Patented October 25, 1904.

UNITED STATES PATENT OFFICE.

WILLIAM H. CLARK, OF ROCHESTER, NEW YORK, ASSIGNOR, BY MESNEASSIGNMENTS, TO THE NATIONAL CASH REGISTER COMPANY, OF JERSEY CITY, NEWJERSEY, A CORPORATION OF NEW JERSEY.

COMPUTER AND PRINTER.

SPECIFICATION forming part of Letters Patent No.-773,05'7, dated October25, 1904. Application ile December 9, 1898. Serial No. 698,798. (Nomodel.)

To all whom it may concern: aside elevation of one of thecomputing-wheels Be it known that I, WILLIAM H. CLARK, a and certain ofits appurtenances. Fig. 12 is 5o citizen of the United States, and aresident of a section on the line 12 12 of Fig. 11. Fig.

Rochester', inthe county of Monroe and State 13 is a top plan of thesetting-bars and cerof New York, have invented certain new and tainrelated mechanisms, parts being removed useful Improvementsin Computersand Printon the line 13 13 of Fig. 8 to exhibit construcers, of whichthe following is a speciiication. tion. Fig. 14 is a partial rearelevation of 55 This machine is a complete computer and the machine withcertain parts removed and printing device and is an improvement uponcertain parts shownin section on the line 1414 Io devices heretoforeproduced by me; but many of Fig. 8. Fig. 15 represents an end elevapartsand arrangements in the machine contion of the cam-plate fr, and Fig. 16represtitute more than mere improvements upon sents a similar View ofthe cam-plate nc. 6o said prior devices and are, in fact, new and TheInachine contains a key mechanism independent inventions. Y consistingof the iinger-pieces connected to 15 The object oi' the invention is toproduce and operating longitudinally-movable bars, an improved andeilicient total-adding comwhich by displacement from their normalpoputing-machine with a printing device capasitions of rest are adaptedto be moved in 65 ble of printing the individual amounts regispathswhereby contact can be made with movtered by the machine and oi'printing the sum able setting parts of a registering mechanism.

2O total of the amounts registered. The movable bars are moved in aparticular Theinvention consists in themechanisms and path upon eachoperation of the machine and combinations herein described and claimed.when in the ordinary position of rest do not 7o In the drawings, Figurelis a top plan view come in contact with the setting parts above of amachine embodying the improvements mentioned, but, as explained, whendisplaced set forth herein. Fig. 2 is a front elevado make such contact.

tion, parts of the casing and parts of the inte- In the form of deviceshown the longitudirior mechanism being' removed in order tonally-movable setting-bars A are pulled in 75 exhibit construction, theline 2 2 of Figs. 6, one direction by springs c, each bar being in- 7,and 8 showing the line on which the views .dependent of the others inits movements.

of the right and left hand portions of this fig- The bars A are held inthe displaced or seture are taken. Fig. 3 is a top plan of the tingpositions by means of dogs AC, which feeding mechanism for theprinting-ribbon. snap into notches a0 upon the upper' edges of 8o Fig. 4is a section on the line 4 4 of Fig. 3 said bars. The dogs A' arenormally held looking in the direction of the arrow in the down eitherby gravity or by springs c. It

latter iigure. Fig. 5 is a rear View of the mais convenient, as in theconstruction shown in chine, the rear plate of the case being rethedrawings, that a single dog should be moved and some of the interiorparts being adapted to engage all the bars relating to a 85 removed toexhibit construction. Fig. 6 is single denomination, although separatedogs an elevation ot' one end of the machine, the for each bar would bean equivalent form.

40 end casing-platebeing removed. Fig. 7 is an The set of dogs for allthe denominations of elevation of the other end ofthe machine, the amachine constructed according' to my inend casing-plate beingremoved.Fig. 8issecvention are strung upon a bar am, and there 9o tion 'on theline 8 8 of Figs. 2 and 5 lookingI is a small amount of loose movementas bein the direction of the arrow in those iigures. tween the bar andeach dog, so that the dogs Fig. 9 is a section on the line 9 9 of Figs.2 may engage in the notches of the setting-bars and 5 looking in thedirection of the arrow in without affecting the position of the bar uponthose ligures. Fig. 10 is adetail view of part which they are strung.This loose connection 9 of the platen-setting' mechanism. Fig. 1l isconsists in a slot t 2 in the dog and a pin 003,

extending from the bar am into the slot. (See Fig. 13.) lhenevcr in theoperation of the machine it becomes desi rableI to (,lisengage all thedogs, the bar upon which they are strung' is turned by means hereinafterdescribed, raising and disengaging all the dogs from the bars which havebeen set, and thus permitting' all the setting-bars A to return to theirnormal position impelled by their respective springs a. It will be notedas the further parts of the machine are described that the dogs A arereleased for a short time only at the end of the positive stroke of themotor or crank.

The front end of each setting-bar is connected to one arm of abell-crank lever A10, that is suitably pivoted to the frame of themachine, and the other arm of said lever is connected to the stem of akey or {ingerpiece A2, so that when the finger-piece is depressed thesetting-bar A is moved longitudinally until it is caught and held by itsdog A, as above described. 'In the form of device shown there are twonotches to in the upper edge of each settingbar A, in one of which thedog A normally rests and in the other of which the dog rests after thefingerpiece has been depressed and the bar is displaced.

The bell-crank levers Aw are formed with sleeves (1,10, which arestrung' on rods (t100, running across the machine. (See Fig. 13.) Thesetting-bars are in each denomination graduated in leng'th, as shown inFig'. 13, so that the linger-pieces A2, relating to each denomination,may be set in parallel rows, as shown in Fig. l.

The inner end of each setting-bar A is turned at right angles to itslength, as at (L00, Fig'. 13, or has a lug upon it, the cheapestconstruction, however, being to make the bar thin in order to producecompactness of construction and to turn the end of the bar at rightangles, as above described.

ln addition to the key mechanism just described the machine has asettingmechanism, a registering mechanism, and an operating mechanism. The freeor rear ends of the whole series of setting-bars A of all denominationsrest upon a universal plate or stirrup A, that is caused to rise andfall, by means hereinafter described, in order to make con? tact withthe setting mechanism and to operate it. The time of the movements ofthe stirrup is at the beginning of the positive stroke of the motor orhandle for reasons that will be explained. The stirrup A"i is hung ateach end upon a pin (t3, that forms the connecting-pivot to one arm of abell-crank lever ai, the fulcrum of (see Figs. 6 and 7) of saidbell-crank lever being' a rod passing' across the machine and throughthe end frame X X of the machine and outside thereof. I he other end ofthis bell-cranklever is provided with a friction-roller fr" and 1soperated as will be described. There is one of these bellcrank levers ateach end of the machine, so that the stirrup rises and falls evenly. Theweight of the stirrup is sufficient to return it to place after it hasbeen raised; but a spring may be employed in place of gravity or toassist it, if desired.

The general system of the registering m echanism of this machine is ofthe ball variety, such as is well known from my prior United Statespatents, although it is greatly changed in certain respects, as willclearly appear. rl`he balls in this machine move in circular paths in agroove or way B, formed in the periphery of a ring. ln the presentembodiment of my invention this ring is the rim of a wheel B, and thewheel moves with the balls to force them around in their paths. Afterthe wheel has moved to the proper degree the balls are held stationarywhile the wheel makes its further or non-registering movement.

In order to set the machine for operation, l provide a universal bar C,swinging about a center and inside the ring or rim of the wheel B abovementioned. Thisbar is common to all the registering mechanisms of theseveral denominations and has a uniform path of movement correspondingto the stroke of the power device or handle.

rfhi'ough the center of the machine passes the main shaft D, carrying atone end the crank D0 and handle 1)0 and also carrying near each end ofthe main shaft a cam-plate fn fr. rlhe two cam-plates are outside theend plates X X, which support various mechan isms of the machine. Thesetwo cam-plates are rigidly fastened upon the main shaft, and hence movetogether as if one, and to them are fastened the ends of the universalbar C above mentioned. Upon one of the camplates m, Fig. 7, is placedthe ratchet-segment wladapted to engage with a fish-tail dog af, inorder to compel full stroke of the operating device or crank after thehandle has been started. Pins ml In, carried by the cam-plate, tilt thelever attached to the lish tail dog when either end of the stroke of thecamplate is reached, and a spring' fr", having the wedge or tooth Inupon it, engag'es on one side or the other of the wedge-tail of the pawland holds the pawl in the proper position for permitting the movementsdesired. Thus full stroke, first in the positive direction and thenbackward in the negative direction, is compelled with auniform forwardand backward movement of the universal bar C and of the cam-plates :1;and .f/f.

Around the main shaft D and between the end plates X X is a sleeve D,that is fastened to the end plates, so as not to be moved either by therotation of the shaft within it or by the rotation of the parts whichsurround it. Upon this stationary sleeve D is strung a series of thewheels B, one for each denomination, each having in its rim or peripherylOO A toward the pins.

the ball-groove B above mentioned. ball-wheel carries a settingmechanism for determining the amplitude of the arc of vibration by whicha particular'number of units shall be counted by that wheel. Thissetting device (see Figs. 1l and 12) consists of a frame rigidly securedto said ball-wheel and having two brackets 5 50, (see Fig. 12),extending substantially at right angles to the plane of the wheel andformed in arcs drawn from the center of this wheel. Through thesebrackets pass a series of nine pins blo. supported and guided by thebrackets. These pins are set in radii of the circle of the wheel and inthe same plane and are impelled outward or away from the center of thewheel by suitable coiled springs H, surrounding the pins and in eachcase pressing against a collar or fiange 12 upon the pin and alsoagainst one of the brackets. Each pin is also cylindrical and isprovided with a conical tooth 513, said tooth being made conical orcircular in cross-section in order that it may engage in any positionwith a catch or dog, hereinafter to be described, and also for ease ofmanufacture. To the fr ame is fastened by suitable arms H a dog 61",which is universal as to each set of lnine pins. This dog when the pinsare impelled outward by their springs and rest in their retractedpositions rests against the outer surface of the cone; but when the pinis moved inward toward the center of the wheel the dog engages Linderthe base of the cone and holds the pin in an extended position. Springsof suitable form, such as the flat spring 721, tend to keep theuniversal dog pressed inward The dog has an extension or arm on one endor at any suitable point, whereby it may be released from any of thepins that have been operated, as hereinafter described.

The sets of setting-frames above described are preferably set in lineacross the machine and at substantially the lowermost point of each ofthe ball-wheels and are immediately above the rectangular bent ends 400of the setting-bars A above described. In the normal position of theparts the ends of the pins do not register with the ends of thesetting-bars, (see Figs. 8 and 9;) but when any setting-bar is displacedfrom the normal position by the depression of its finger-piece the end@00 of said bar is brought under the end of its pin, and when thestirrup A3 is raised that bar @00 will make contact with the end of thepin and will raise it until it is latched in its projected position bythe universal dog 515 above described. No other pin, however, in thatdenomination will be moved, because the bent ends tooof thesetting-barsA are so adjusted as to pass between pins without makingcontact with them. If now the universal bar C within the ball-wheels isswung through its arc, it will strike the pin b1", that has beenprojected into the path of said bar, and on account of Each the positionof the projected pin lo the ball-` Wheel will be moved through an arccorresponding to the value of the pin, because the bar C always movesthrough a denitc arc. It will be noticed that the pins bw are set in aplane parallel to the plane of movement of the ball-wheel and that theuniversal bar has a constant path of movement, ending against a stop. If9 is to be counted, a pin is projected into the path of the universalbar by the means above described and is the pinnearest to the normalposition of rest of said bar. Thus this 9 pin is the first against whichthe universal bar can strike, and hence the bar C swings the wheel Bthrough the maximum stroke or arc of movement of the Wheel. The l pin isset farthest away from the normal position of rest of the universal barC and is the last pin with which said bar could come in contact, thusmaking the distance from the point of contact to the stop the shortestarc of movement of which the wheel is capable. In Fig. l1 thc 6 pin isshown projected into the path of movement of the universal bar C.

1n order that in operating the machine quickly the stroke of theuniversal bar against a raised pin may not drive the wheel with greaterspeed than the bar, l provide a latching device (shown best in Fig. 11)that locks or connects the universal bar to the ball-wheel. Upon theuniversal bar is a dog co1, that is operated either by gravity or by aspring to engage with a series of ratchet-teeth 601 upon the ball-wheelB or, as shown, upon the pinframe b. When the bar C strikes a pin, thedog 001 engages a tooth of the ratchet 501 in such a position as to lockthe bar against the pin and to prevent either forward action of theball-wheel with reference to the universal bar ora rebound of theuniversal bar from the pin. 1n order to operate this dog, a convenientmechanism is shown, in which the dog 001 has a projecting V-shaped tailco2 adapted to engage with the V-shaped tail of a small bell-crank leverco3, also carried by the universal bar C. This bell-crank lever is heldby a spring c in a position adapted to engage with the V-shaped tail ofthe pawl. The other arm of the bell-crank lever C03 is adapted to engagewith a stationary hook-shaped bunter 005, which holds said arm of thelever Q03 down and swings its V-shaped arm forward and out of the pathof movement of the tail c02 upon the pawl co1. If the pawl co1 is in itslowermost position, its V-shaped tail engages in front ofthe V-shapedarm or tail of the bellcrank 003, and the spring c, operating' upon thebell-crank co3, will therefore latch the pawl co1 in its lower orengaging position and hold it in this position by the elastic pressureof the spring c, which operates the bell-crank. As soon as the universalbar C begins to move the bell-crank co3 is released from its bunter co5,and its spring e0* presses the pawl dol with an elastic pressure againstthe ratchet-teeth,

IOO

IOS

thus being adapted to latch the parts as above desci'ihed. As theuniversal bar approaches the limit ot' its positive stroke a stationai'ybunter c strikes the tail e0 ol the pawl, d rives it past the tail ofthe bell-crank levei' cm, and thus latches the pawl in a raisedposition, whereby it cannot engage' the ratchet-teeth, and thus a Freei'eturn stroke ot' the parts can occur. lt will be observed that theuniversal bar has a uniform sti'oke, but that the hallwheels havevariable strokes, according to the amount to be computed thereon.

Each ball-wheel B carries on its lowei' portion a dog 7)', (see Fig. 8,)that projects into the gi'oove B, wherein the balls Y move, and at asuitable point in the upper part ot the machine another but stationarydog 7f3 is pi'ovided 'for each ball-groove, the whole series oi whichdogs b2 are hungloosely to the t'rame of the machine upon a suitablecross-bar A second stationary dog is pi'ovided for each ball-groove andprojects into the same in the lowei' part of the wheel conveniently in aposition opposite to that ot' the dog lirst above mentioned. TheStationary dogs 71" are 'fastened upon a shaft extending across themachine, and are moved positively in and out of the ball-groove B inoi'dei' to hold the balls stationary during the return movements ot thewheel. The shaft 0" is rocked upon each movement of the cam-plate fr' bya pawl bom. This pawl is normally held in the position shown in Fig. 6by a spring 0, The camplate 6 is mountedv on the plate fi: and is formedat opposite ends with cain-shouldei's which engage and i'ock the pawlLD50 in opposite directions in a manner well known in the art. It' theball-wheel B' is revolved by the means above described thi'ougli an ai'ccorresponding, for instance, to six balls, the dog upon the ball-wheelholds a number ot balls stationary with reference to said wheel, butYforces them past the stationary retainii'ig-deg If at the upper pai'tof said wheel, so that these balls pass onward into that portion oi: thegroove devoted to the registering` or computing. rIbis occurs on theforward stroke of the wheel, which takes place in the direction ot' thearrow in Fig. ll. 1l" now the stationary dogs at the lower part of thewheel ai'e brought into engagement with the balls in the groove and thewheel is tui'ned backward, the whole series et' balls in the grooveremain stationary, while the wheel returns to its normal position.

Il a key A, representing` i 6, is depressed and the coi'i'espomling pin/im is raised, the universal bar C passes ovei' the ends of pinsrepresenting 7, I

pin representing L(, swings the ball-wheel B through six oi itsninedegreesof moven'ient until the universal bar C strikes against theends of the slots C in the end plates X X', through which said barpasses. B is thus moved through an ai'c equal to six 8,and "9, strikesagainst the i The wheel i times the diameter ol' a single ball upon thewheel, and in the series of halls six halls ai'e forced past theretaining-dog at the top and lall down in the registering-channel.

it will be noticed that the groove in that portion o l the wheel la atthe back ot' the inachine and extending between the retainingdog /2 atthe top and the dog b', carried by the wheel, is always lnll ot' ballsand that consequently when the wheel moves in its positive dii'ectionone or more halls must be pushed past the retaining-dog /fi at the top.A suitable vacant space is lett in the groove by adjusting the numberotl halls pi'operly and in l'illing the saine. This space it has beenYFound in practice must be equal to at least twenty ball diameters andis preferably greater than that in order to give a place for registeringstrictly and a space t'or retaining the balls he- Ytore permitting themto di'op into the registering portion Bm, Fig. il, et' the groove.

ln oi'dei' to release universal dogs /Uol: the pin-trames, .lV provide abar/i, running across the machine and provided with a sei'ies ot' pinsfil, (see Figs. 8 and 12,) one t'or each dog bl, and adapted in thenormal position ot' rest to stand adjacent to the sides of theextensions oi' arms t upon universal dogs. A liter the return ornegative stroke ol the machine the bar /fH is moved endwise. The pinscome against the arms /i7 o't' the respective dogs, move them outward,so as to disengage Yfrom the cones or teeth f" upon the pins /m, andpermit the pins to be moved hack to their original positions by theirsprings iI. In oi'- der to operate this bar, l provide a pin 6m, Figs. 2and 13, extending sidewise Yfrom the end ot' the bai' outside the endframe X ol: the machine, which pin extends into a spiral cam-groove inthe hub b2" of a tilting 'traine 62.1, Fig. (5. The hub 7X bears againstthe end trame X, and when the trame /f is tilted the bar i will be movedei'idwise. The Yframe /fl carries upon it two rollers, which ai'eadapted to engage with a tilting yoke U on the camplate fr' lieroperating the same. This yoke lf2 is pivoted upon the cam-frame and ispulled in one direction by a spring' b2", so that the yoke rests againsta stationary stop or pin /i on the cam-frame. Then the cam-'Frame ,1'moves in the positive direction, the yoke 6"l passes over the tiltinglrame without actuating it; hut when the cam-plate is moved in thereturn or negative direction one arm ol' the yoke engages with one otthe rollers on the tilting trame ff, tilts the li'ame partially, thuscausing the other rollei' to enter in hetween the arms o t the yoke,and, the movement ofthe yoke still coi'itinuing, the second ai'in ol.the yoke engages the other i'ollei' et the tilting trame and causes aYlurther tilting' oi the tilting' traine. The employn'ientotl the tworollers and ot' the yoke causes a greater ai'c of movement ot thetilting' trame, and thus a greater longitudinal movement of the TOO IlO

bar lsforreleasing the universal dogs. This could be the case if asing'le roller on the tilting frame and a single bar (instead of theyoke) were employed; but the double construction seems preferable. Thetilting frame is carried back to its initial position by a suitablespring' The foregoing describes all the movements which relate to thecomputing operations in each of the denominations, but does not includethe carrying' mechanisms,which are now to be described.

Each ball-wheel B carries a carrying-lever E', having a changeablefulcrum, and which is curved to conform to the circular form of theball-wheel and is connected to said ball-wheel by means of a guide-stemE', resting and adapted to slide in a slotted block c, fastened upon theball-wheel. (See Fig. l1.) The lever about at its middle is pivoted at eto the guide-stem, and thus may tilt upon the stem. The lower end of thelever E is provided with a pin e2, that extends into the groove B in theball-wheel B so far as to check and retain any balls which drop againstsaid pin. At or near the pivotal point of the carrying-lever upon thestem is another pin @3, adapted to move into the groove of theball-wheel whenever the lever is depressed at its middle. This pin e3 isplaced at a position so far distant from the pin c2 upon the end of thecarrying-lever that when a number of balls rest upon the last-mentioneddog, representingthe maximum of the denomination to which thatball-wheel relates` the pin e3 at the middle of the lever will whendepressed rest upon a ball, thus holding it in the groove, tilting thefree end of the lever and lifting the pin e2 at its end out of thegroove and discharging all the balls below that one which is pinched orclamped by the pin e3 at the middle of the lever.

The end of the lever opposite to that bearing the retaining-pin e2 isoperated by a universal :arrying-frame F, that extends across themachine and to which is connected all the carryinglevers of thedifferent denominations. This carrying-frame is moved at each operationof the machine and has a series of slots f, Fig. 2, parallel to thelines of movement of thc carrying-levers, and a screw or bolt c" passesthrough each slot f and into the block upon the end of the correspondingcarrying-lever. It is now obvious that when any ball-wheel is moved itscarrying-lever E is oscillated with it and the bolt or screw e* movesalong the slot f in the carrying-frame.

The carryingframe is operated at each movement of the machine by devicesupon the cam-frames a' m', above described. From the ends of thecarrying-frame there project outwardlythrough openings in the end framesXX' pins f ',carrying friction-rollers f2. (See Figs. 6 and 7.) Thesefriction-rollers are in the paths of swinging cams f3, Figs. 6 and 7,carried by the cam-plates :r These carrying-frame cams f3 are normallyheld inward against the cam-plates by springs f* and are pivoted to thecam-plates, so as to swing to and from them. Each swinging cam has aninclined cam-surface f5, which at the first portion of the stroke of thecam-plate quickly depresses the carrying-frame, and continuous withthese inclined surfaces are surfaces f concentric with the cam-plate,whereby the roller f2 and carrying-frame F are first depressed and thenare held in the depressed position through the forward positive strokeof the cam-frame. At the end of the forward stroke of the cam-frame abunter f7 on the end frameXX' acts upon the end of the swinging cam,compressing the spring' f4 of the swinging cam and forcing' the cam fromengagement with the friction-roller.

Suitable springs f8 raise the carrying-frame ,to its normal position assoon as this release occurs, and themovement of the carryingframe bringsthe rollers f2 behindthe swinging cam, so that the cam presses againstthe outer end of its roller during its return movement and until theinclined portion of the swinging cam permits it to pass the edge of theroller, whereupon the spring f* carries the cam back to its initalposition.

Each carrying-lever E is connected by a link e5 to one arm of abell-crank lever e6 upon its ball-wheel B. The other arm of saidbellcrank lever e has a pin e7 projecting' therefrom and into a positionadjacent to the wheel of the next higher denomination. The bellcranklevers are moved to their normal positions by springs e, which tend topull the free ends of the carrying-levers .inward toward theirball-wheels and to set the pins e2 on the ends of the saidcarrying-levers in the ball-grooves of the wheels.

Upon each ball-wheel is a sliding plate G, (see Figs. 9 and 11,) throughwhich the hub B2 of the wheel B passes. The perforation g through theplate (J, which encompasses the hub B2 of the wheel, is an elongatedslot, so as to permit the radial movement of the plate upon the wheel. Aguide-pin g, passing through an elongated radial slot g2 in the plateand into the wheel, acts as further guiding means for the movement ofsaid plate. Each plate has at its upper end a curved slot g3, that iscut upon a radius drawn from the center of the wheel. and into which thepin e7 of the bell-crank lever e of the wheel B' of the next lowerdenomination constantly projects. Consequently whenever the free end ofthe carrying-lever E is moved outward or away from the center of itswheel the plate G upon the wheel of the next higher denomination ismoved downward. Upon the universal bar C is pivoted a movable block c'for each operating-wheel of the machine. This block is adapted to bemoved in front of the universal bar C and has an end of such size thatwhen upon movement of the universal IIO IZO

bar the end of the block comes in contact with l last mentionedpreferably bears a frictiona pin or with the end of the slot in thewheel l roller that runs over the cam, and the bar through which the dogmoves it will move said wheel one ball-diameter more than its normalmovement, or if no pin is set it will move the wheel through oneball-space. This block is operated by a pin c?, extending therefrom intoa curved slot (7" in the sliding plate Gr of its denomination, so thatwhen the free end of a carrying-lever E is moved outward the link J andbell-crank lever c upon the wheel B of any denomination operates thesliding plate G upon the wheel of the next higher denomination, and theblock cf is moved into the path of the universal bar C, so as to add orcarry one ball in the groove B of said higher denomination. It will thusbe seen that whenever balls representing the maximum of any denominationhave accumulated upon the pin @2 at the end of the carrying-lever thepin ff' at the middle of the carrying-lever on depression of thecarrying-frame F tilts the carrying-lever and pinches the operating ordead ball Y', representing said maximum, (see Fig. 11,) lifts the freeend of the carrying-lever, discharges all the balls beneath the pinchedball, and one ball is carried into the registering portion of theball-groove of the wheel of the next higher denomination. Of course thisone ball represents the value of the balls discharged in the wheel ofthe next lower denomination.

The carrying operation always occurs upon the operation of the machinenext succeeding the operation by which the balls equal to or exceedingthe maximum of any denomination are accumulated in theball-groove of thedenomination.

It is obvious that it is convenient and best that the ball-wheels shouldalways be set in order to return to their normal positions of rest, sothat the dog L", that holds the balls stationary during the return ofthe ball-wheels, may enter exactly between the balls and not strike uponany, and for this purpose I provide acenteri-ng and locking device asfollows: Upon each wheel B is a series of ratchetteeth B, and across thewhole series of wheels is a bar Bl, having a sharpened edge adapted tomove into the spaces between said ratchetteeth. These teeth areaccurately spaced and beveled and placed so that when said bar entersthe spaces between the teeth to its full depth the wheel is exactlycentered for the pu rpose above described. The bai-Bi is hung by arms Bupon a rod B", passing' through and journaled in the end plates X X, andthe bar normally pulled inward toward the ratchetteeth by one or moresprings (not shown) fastened to the arms and to the end plates of themachine. The locking and centering bar B'l is moved by a cam fr?, Fig.6, upon a camplate fr at one end of the machine, engaging with an armBT, fastened to the rod upon which the locking-bar is hung.

. contacts, w, upon the cam-plate ,f1/

is thus moved inward and outward at such times and for such periods asmay be found desirable. This centering' device also brings the pins 51of the pin-frames into their proper positions with reference4 to theends m0" of the key-bars.

The locking-bar is engaged with the ratchets in the normal position ofrest of the machine, as shown in Figs. 8 and 9, and is not lifted outtherefrom until after the stirrup A has risen and set the pins. Thelocking-har Bl is kept out ot' engagement with the latch until the endof the positive stroke of the power device or handle, at which time itis thrown into locking engagement, thus holding the ball-wheels inposition for the stationary dogs 7)* to hold the balls stationary whilethe wheels are returned. During the negative or return stroke of thepower device or handle the locking-bar is lifted eut of its engagementwith the ratchets and is held out of engagement until near the end ofthe return or negative stroke of the handle. The purpose of this timingof the parts is to permit the movement and return of the ballwheels tocenter the ball-wheels at the beginning of the positive stroke in orderto cause the proper setting' of all the parts connected with theball-wheels for the position of rest and to set all these partsaccurately at the end of the positive stroke of the handle for alikepurpose.

l employ a cam nel, as above stated, for operating the locking-bar, andthis cam is sulficicnt for the purpose; but in order to produce a longerdisengagement of the bar from the ratchets and a quicker engagement ofsaid bar therewith I may employ a supplementary device consisting of adouble-acting stop B", pivoted to the end plate ,f/f, Fig. 7, of theframe and adapted to be tilted in each direction about its pivot bycontact arms or stops 115:13 upon the cam-plate. rlhis stop is alwayspulled by a spring 7)", that tends to bring it to a central position andto set its outer end under the arm or extension /o of the lockingbar,whereby the locking-bar is held away from the ratchets; but upon thestop being struck by either of the contacts on the camplate the stop istilted, releasing the bar therefrom and permitting it to drop quicklyinte the ratchets.

The full operation of the combination of the cam and stop on thelocking-bar is as follows: In the position of rest the stop Bx restsupon the upper side of the arm or extension 72"" of the locking-bar, asshown in Fig. T, having been tilted into this position by one of the Onthe positive stroke of the handle the cam n] lifts the locking-bar B'Lout of engagement with the ratchets B, and at the same time the The armB7 l spring 7) upon the stop Bs brings it under the lOO IIO

, of the pin-frame.

arm 54 of the locking-bar, so that as the motion of the handleprogresses the locking-bar drops upon the outer end of the stop BS, andthus remains out of contact with the ratchets until the other contact,m80, upon the cam-plate tilts the stop, moves it out from under the bar,and permits the bar to drop suddenly. On the return stroke the cam m7again lifts the locking-bar out of the ratchets, the stop is brought bvits spring underneath the locking-bar, the locking-bar rests upon theend of the stop and out of engagement with the ratchets, andat the endof the stroke the contact m8 on the camplate tilts the stop and permitsthe locking-bar to fiy in. This stop device, while convenient, is notnecessary to the operation of my machine.

Upon each cam-plate a; and w is pivoted a tilting cam 9030,. normallyheld against a stop m33 by a spring This cam m30 acts upon the roller f2on one end of the bell-crank lever @30, that raises the stirrup A3 forlifting the setting-bars A, that act upon the pins b1 This cam x30 actsto lift the stirrup A3 as quickly as possible after the handle startsand rests against its pin in order to produce a positive and powerfulaction. On the return stroke, however, the cam 023 tilts and passes theroller @32 without moving the bell-crank a3.

In order to repeat a computing operation of the machine, I place uponthe bar 618, that bears the pins 1 for releasing the universal dogs 515of the pin-frames a crank Z230 and a link 31, (see Figs. 7 and 13,)which are pulled in one direction by a spring Z232. To the end of thelink 31 I attach one arm of a bell-crank lever 533, the other arm ofwhich is attached to the stem of a linger-piece A4, which passes upwardthrough the keyboard-plate of the machine. A notch afin the stem of thekey or finger-piece AAl is adapted to engage the edge of the perforationin the keyboard-plate A" in order to hold the key-stem down and to holdthe crank L30 upon the bar 618 in its abnormal position. The spring7132'tends to pull the link in the other direction, and I. provide astop 3* upon the frame and a lug 635 upon the link, which in theposition of rest are in engagement with each other. On depressing thefinger-piece and engaging' the notch in its stem in the edge of theperforation in the -keyboard-plate A5 the bar 61S, carrying the pins 1",is rotated through Van arc sufiieient to move the pins out of anypossible engagement with the universal dogs 515, and consequently thepins 721, that have been operated, remain raised, and the operation ofthe machine is repeated as many times as may be desired and until thenotch a* in the stem of the finger-piece is released and thelinger-piece, -link 31, crank 3, and rod .7)18 are returned to theirnormal positions by the spring 7232, that acts upon the link.

In order to reset the keys A2 in case a wrong key has been depressed, Iprovide a key A, Fig. 1, extending up through the keyboardplate A5 andattached to one arm of a bellcrank lever a6, (see Fig. 6,) the other armof which is attached to a link a6", connecting with a crank am upon therod om, that bears the series of dogs A for holding thelongitudinallymovable setting-bars A in their set positions. A-spring@62, acting upon the link am, bellcrank lever, or key-stem, tends toretain these parts in a normal position; but when the keystem Abv isdepressed the rod am, carrying the series of dogs, is turned, and allthe dogs are moved out of engagement with the settingbars, permittingthe latter to return to their normal positions of rest by the operationsof the springs a.

At each operation of the machine a pin m on the cam-plate rv (see Fig.6) strikes a lever L63 on the bar am, tilts the bar, and releases allthe dogs A from the operated setting-bars A. The bars are returned totheir initial positions, as just described. I thus provide for anautomatic and a non-automatic resetting of the operated keys.

In order to reset the machine to Zero, I provide a bar H, running acrossthe machine through openings in the upper portions of the ball-wheelsand journaled in the end plates X X and provided with a series of armst, having projecting studs t, one for each ballwheel, and adapted whenthe bar H is rotated to strike the tops of all the sliding plates (iupon the ball-wheels and to depress them. A handle H is provided on theoutside of the machine for operating this bar. Upon operating the handleH and turning the bar H the sliding plates Gr are all depressed, and thecarrying-levers E, through the bell-cranks a and links e5, are movedoutward from the periphery of the ball-wheels, thus lifting out the pinse2 upon the carrying-levers and disengaging the balls, which rest uponsaid pins, permitting the balls to run downward in the channel. This'fills the vacant ball-spaces in the registering-channel B10 below thepins c2 up to their maximum. The same operation or depression of thesliding plates G moves the dogs c in front of theuniversal bar C andupon operation of the machine brings one ball from the stored balls inthe back of each wheel into the channel B in front to be caught and heldupon the pins c2 on the ends of the carrying-levers E.

It is well known from my prior patents relating to ball-registers, asset forth in my prior patents and applications, that a deadball or aneleventhA ball is always employed as an operating ball and not forcomputing. Thus operating the machine while holding the handle H in itsturned position the sliding plates Gr are actuated, and the registeringportionsA B10 of the ball-channels are filled, and the dead-ball isreplaced on the pins of each ball-wheel, and thus the machine is resetto Zero, it heilig' observed, however, that in this l der to pern'iitthe connection from the widelyoperation of resetting to Zero the handlell is held turned long enough only to hold the plates G depressed untilthe universal bar with its depressed dogs c, can move each of theball-wheels simultaneously one space, and thus force forward thedead-ball for each wheel, whereupon the handle H is immediately releasedto permit the plates G, and therefore the carrying-levers Eto bereturned to normal position, with the pins ff returned into theball-channels in time to arrest the dead-balls, this being' the normalZero condition of the machine, as shown in Fig. il.

Having now described the setting' and registering mechanisms,theresetting' mechanism. and the repeating mechai'iism, the remainder ofthe machine consists in aprinting mechanism for printingl the amount ofcach operation of the machine and a mechanism for printing the sum-totalofthe several amounts theretofore registered and printed.

The printing mechanism consists, broadly, of a series of type-carriers,an impression mechanism, a platen-setting mechanism, and a paper-feedmechanism. These mechanisms are all operated by the same power device orhandle which operates the registering devices in the machine.

The type-carriers are set by the movements of the ball-wheels andproportionately to the movements thereof. ln the case of a carryingoperation performed by any ball-wheel the setting of the type-carriermust d itfer from the setting of the ball-wheel, and provision is madethat under those circumstances the typecarrier is set in the same manneras if no carrying were occurrinv'.

The type-carriers are all set normally to print zero at theprinting-line, and in order to prevent the printing of the zerosindenominations above that of the highest-ballwheel which is set .lprovide a movable platen, which is at every operation of the machinemoved transversely to the line of print and in a direction beginning'with the lowest denomination and so far as to register with only thosetype-carriers that have been set in consequence of the setting'operations of the machine. Vith this system of operating the platen theciphers of higher denominations than any set-key will not be printed.

The type-carriers in the present embodiment of my invention consist of aseries of segments J, (see Figs. 8 and 9,) one for each denomination,pivoted upon a table or crossplate Z, resting upon the end plates X X ofthe machine. The type-segments have type j' on their peripheries and arecapable of oscillation in vertical planes, beingl hung on a bar J, settransversely of the machine and in the upper part thereof. Eachtype-segment is connected to an arm or lug by suitable links y", (seeFig. 8,) which are bent in the present instance, as shown in Fig. lf-t,in orseparated ball-wheels B to the more narrowly and compaetly arrangedtype segments. rlhese links j might be directly pivoted to theirball-wheels; but for certain reasons, which will be developed later,each link is connected to an arm or lever/'2, which is hung upon a hubof each ball-wheel B and is capable of oscillation with referencethereto. A side arm or extension j from said level' jT2 normally restsagainst a pin ff, projecting from the sliding' plate ol' the ball-wheelB of that denomination, so that when the ball-wheel is moved to performa registering operatitn'i the lever is moved to a corresponding degree,and thereby the type-carrier is set with a type at the printing-linecorrespol'iding to the value registered upon that ball-wheel. Vlf,however, a carrying operation is occurring upon that ball-wheel and thesliding plate (lr is lowered, as above described, the pin r/" upon thesliding plate moves out of possible engagei'nent with the side arm orextension j of tln` lever, and another pin, upon the ball-wheel B comesin contact with the lever and moves it to set the correct type on the type-carrier. On account of the extra motion of the ball-plate that occursin a` carrying operation it becomes necessary to reduce the movement ofthe lever je, that controls the operation of the typescgments, to an arcless than that of the movement of the ball-wheel by exactly the amountof that extra carrying movement, and therefore while the pin y upon thesliding plate G is normally in contact with the side arm or extension jof the lever j, that operates the type-carriers, the pin /f upon theball-wheel B is set in such a position that the ball-wheel must move toan extent equal to one typespace upon the periphery of the type-carrierbefore this pin meets the lever and moves it. The links j are of coursepivoted to the typesegments J in any suitable way. A convenient mode ofpivoting a link to a type-carrier is to form a large head j", Figs. 8and t), on the cnd of the link and to set the head j" in a somewhatlarger perforation through the type-carrier. A narrowed portion of saidperforation, however, passes around the large heady'0 of the link. Thehead j" is held in place by means of thin plates ,/"l", fastened uponthe sides of the type-carrier, and incloses the head j in theperforation.

The inkingribbon 1C) passes in a wellknown manner across the faces ofthe typecarriers J and is provided with suitable guides to keep it inproper relation to the type. Various mechanisms may be employed forfeeding fresh portions of the ribbon to the printing-line; but aconvenient device for this purpose is now to be described. I provide twodrums K K', on which the two ends of the ribbon K0 are rolled. Saiddrums are revoluble upon axles Z; /r at right angles to TOO IIO

the plane of movement of the ribbon. Automatic devices operate one orthe other of these drums, as desired, to cause them to actcorrespondingly and to cause a gradual feed of the ribbon across thetype. Upon the axle of each drum K K7, Figs. 3 and 4, is placed aratchet-wheel 7:2and an arm 71:3, capable ofoscillation upon said axle,and upon the arm is a spring-actuated drivingpawl 714, adapted to engagewith the ratchet-wheel and to cause its rotation when the arm isoscillated. Another pawl 765, pivoted upon a stationary support, isnormally held in engagement with its ratchet-wheel by a spring for thepurpose of preventing backward rotation of the ratchetwheel and drum.The arms carrying the driving-pawls 7c* are connected together by a link7r, and said link is connected to a driving-bar 7:7, held in suitableguides underneath the typeplate of the machine and normally pulled inone direction by a spring kg, Fig. 2. The connection between thedriving-bar 707 and the link 7u is a pin 7:, Fig. l, upon saiddrivingbar and extending through a slot 751 in the top plate Z and intoa socket or perforation in an arm 7cm, carried by the link. Thedriving-bar 7:7 is operated by a lever 7c, Fig. 2, pivoted on one of theend plates of the machine and having one end pivoted to the end of thedriving-bar and the other end in the path of a cam m2", Figs. 2 and 6,upon one of the cam-plates. Whenever the machine is operated, thecam-plate oscillates, the cam x20 operates the lever/U12, which movesthe driving-bar 7:7 and puts its spring 7r=8 in tension, moves the link7; and the pawls 7114 on the arms 7e3, and drives the ratchet-wheels 7a2and the drums K Kl in a manner hereinafter explained. Then the cam x20on the cam-plate is disengaged from the lever 7012, the spring 758,connected to the driving-bar 707, returns the parts to their initialpositions.

vI will be noticed that the ribbon K0 is wound upon the two drums K K7in the same direction, and consequently the two drums may revolve in thesame rotary direction whichever one of them winds the ribbon upon itprovided the other drum is free to revolve without action of the pawls.In order to disengag'e the pawls 7i:vit from one or the other vof thewheels, as may be desired, I provide a cam-plate 7;, set free upon eachof the drumaxles 7c 7L, which when turned to the proper position holdsboth dogs related to that drum away from the ratchet-wheel; but by meansof depressions or notches therein when the cam 7i'13 is turned the pawls7i;4 7J may rest in the teeth of the ratchet-wheel 7a2. In order to turnthese cams alternately,` so that when one excludes the dogs fromoperation upon its ratchet-wheel the other permits the dogs to engagethe ratchet-wheel, I provide abar cH, movable in suitable guides 761.5on the top plate Z and pivoted to an arm 7017 of each of said cameplates, the arms 7x11 and pivotal points being so adjusted that whenone cam is in operation the other is not. The bar 7,21*, just described,is set into one or the other of its positions by means of a lever 7:17,supported upon the top plate Z of the machine and operated by a suitablefinger-piece 7tlg. The lever 7f17 moves horizontally and engages in anotch 7617 in said bar, so that when the lever is turned into itspositions the bar follows.

The platen-frame L is fixed upon a crossrod or shaft L', which isjournaled in the end plates X X of the machine and is operated by alever-arm Z, Fig. 7, on said shaft L7, a link Z7, connected with saidarm, asecond link 72, connected at one end to the link 77 and pivoted atthe other end at Z3 to the end plate X. A spring 74 pulls the arm 7 in amanner to move the platen-frame normally away from the type-segments J.A tripping-dog 7" is pivoted upon the cam-plate and is normally heldagainst a stop 7 on said plate by a suitable spring 77, so that when thecam-plate is moving in the positive direction the dog passes freely overa pin or roller 7S upon one of the links connected to the platen-shaft,(the link 77;) but when the cam-plate moves in the negative directionthe dog 75 strikes solidly against the pin or roller 7B and moves thelink, so as to tilt the platen-shaft, and with it the platen-su pportand platen, to make a printing impression against the type. If it is notdesired to omit the unnecessary ciphers from a printed line, the platenmay be a stationary platen fixed on `the platen-frame L, and the paperis pressed by the platen against the inking-ribbon, through which thetype makes an impression in the usual manner.

In order to center and hold the type-carriers J in their properpositions, l provide a centering and locking bar jm, (see Figs. 8 and9,) fixed upon the platen-shaft L by the arms ju and having a sharpenededge, whereby it is adapted to enter between ratchet-like teeth jm uponthe type-carrier. For convenience of arrangement these teeth are cut inand through the type-carrier in a line concentric with and back of theperiphery and have between their pointed extremities and the adjacentsolid portion of the type-carrier a slot whereby the type-carrier J mayoscillate. While the locking-bar flo is tilted by the oscillation of theplaten-shaft the lockingbar enters between the sharpened teeth on thetype-carriers, holding those which are setin their set positions andalso holding those which are not set in 'their unoperated positions.

The platen-operating mechanism is so set as to operate at the firstportion of the return stroke of the power device or handle, so that theprinting impression occurs before it becomes necessary to move any ofthe parts of the machine in order to return them to their initialpositions. rI `he locking-bar for the type-segments moves with theplaten and sub- IOO IIO

IZO

ISO

